gdb/testsuite/gdb.threads/pthreads.exp

   1 # Copyright (C) 1996-2013 Free Software Foundation, Inc.
   2
   3 # This program is free software; you can redistribute it and/or modify
   4 # it under the terms of the GNU General Public License as published by
   5 # the Free Software Foundation; either version 3 of the License, or
   6 # (at your option) any later version.
   7 #
   8 # This program is distributed in the hope that it will be useful,
   9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 # GNU General Public License for more details.
  12 #
  13 # You should have received a copy of the GNU General Public License
  14 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15
  16 # This file was written by Fred Fish. (fnf@cygnus.com)
  17
  18
  19 standard_testfile
  20
  21 # regexp for "horizontal" text (i.e. doesn't include newline or
  22 # carriage return)
  23 set horiz "\[^\n\r\]*"
  24
  25 if [istarget "*-*-linux"] then {
  26     set target_cflags "-D_MIT_POSIX_THREADS"
  27 } else {
  28     set target_cflags ""
  29 }
  30
  31 if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable debug] != "" } {
  32     return -1
  33 }
  34
  35 clean_restart ${binfile}
  36
  37 gdb_test_no_output "set print sevenbit-strings"
  38 #gdb_test_no_output "set print address off"
  39 gdb_test_no_output "set width 0"
  40
  41 # We'll need this when we send_gdb a ^C to GDB.  Need to do it before we
  42 # run the program and gdb starts saving and restoring tty states.
  43 # On Ultrix, we don't need it and it is really slow (because shell_escape
  44 # doesn't use vfork).
  45 if ![istarget "*-*-ultrix*"] then {
  46     gdb_test "shell stty intr '^C'" ".*"
  47 }
  48
  49 proc all_threads_running {} {
  50     global gdb_prompt
  51     global srcfile
  52
  53     # Reset all the counters to zero.
  54     gdb_test_no_output "set var common_routine::hits=0"
  55     gdb_test_no_output "set var common_routine::from_thread1=0"
  56     gdb_test_no_output "set var common_routine::from_thread2=0"
  57     gdb_test_no_output "set var common_routine::from_main=0"
  58     gdb_test_no_output "set var common_routine::full_coverage=0"
  59
  60     # Disable all breakpoints.
  61     gdb_test_no_output "disable"
  62
  63     # Set up a breakpoint that will cause us to stop when we have
  64     # been called 15 times.  This should be plenty of time to allow
  65     # every thread to run at least once, since each thread sleeps for
  66     # one second between calls to common_routine.
  67     gdb_test "tbreak common_routine if hits >= 15" ".*"
  68
  69     # Start all the threads running again and wait for the inferior
  70     # to stop.  Since no other breakpoints are set at this time
  71     # we should stop only when we have been previously called 15 times.
  72
  73     set return_me 1
  74
  75     gdb_test_multiple "continue" "continue until common routine run 15 times" {
  76         -re "Continuing.*common_routine.*at.*$srcfile.*$gdb_prompt $" {
  77             set return_me 0
  78         }
  79     }
  80
  81     if { $return_me == 1 } then {
  82         return 0;
  83     }
  84
  85     # Check that we stopped when we actually expected to stop, by
  86     # verifying that there have been 15 previous hits.
  87
  88     # NOTE: Because of synchronization behavior, it is possible for
  89     # more than one thread to increment "hits" between one breakpoint
  90     # trap and the next.  So stopping after 16 or 17 hits should be
  91     # considered acceptable.
  92
  93     gdb_test_multiple "p common_routine::hits" \
  94         "stopped before calling common_routine 15 times" {
  95             -re ".*= 15\r\n$gdb_prompt $" {
  96                 pass "stopped before calling common_routine 15 times"
  97             }
  98             -re ".*= 16\r\n$gdb_prompt $" {
  99                 pass "stopped before calling common_routine 15 times (16 times)"
 100             }
 101             -re ".*= 17\r\n$gdb_prompt $" {
 102                 pass "stopped before calling common_routine 15 times (17 times)"
 103             }
 104         }
 105
 106     # Also check that all of the threads have run, which will only be true
 107     # if the full_coverage variable is set.
 108
 109     set return_me 1
 110     gdb_test_multiple "p common_routine::full_coverage" \
 111         "some threads didn't run" {
 112             -re ".* = 1.*$gdb_prompt $" {
 113             }
 114             -re ".* = 0.*$gdb_prompt $" {
 115                 fail "some threads didn't run"
 116                 set return_me 0
 117             }
 118         }
 119
 120     # Looks fine, return success.
 121     return $return_me
 122 }
 123
 124 proc test_startup {} {
 125     global srcdir srcfile gdb_prompt expect_out
 126     global horiz
 127     global main_id thread1_id thread2_id
 128
 129     # We should be able to do an info threads before starting any others.
 130     set return_me 1
 131     gdb_test_multiple "info threads" "info threads" {
 132         -re ".*Thread.*main.*$gdb_prompt $" {
 133             pass "info threads"
 134             set return_me 0
 135         }
 136         -re "\r\n$gdb_prompt $" {
 137             unsupported "gdb does not support pthreads for this machine"
 138         }
 139     }
 140
 141     if { $return_me == 1 } then {
 142         return 0;
 143     }
 144
 145     # Extract the thread id number of main thread from "info threads" output.
 146     gdb_test_multiple "info threads" "get main thread id" {
 147         -re "(\[0-9\]+)(${horiz}Thread${horiz}main.*)($gdb_prompt $)" {
 148         }
 149     }
 150
 151     set main_id $expect_out(1,string)
 152
 153     # Check that we can continue and create the first thread.
 154     gdb_test "break thread1" "Breakpoint .* file .*$srcfile.*"
 155     gdb_test "continue" \
 156             "Continuing.*Breakpoint .*, thread1 \\(arg=0xfeedface\\).*at.*$srcfile.*" \
 157             "Continue to creation of first thread"
 158     gdb_test_no_output "disable"
 159
 160     # Extract the thread id number of thread 1 from "info threads" output.
 161     gdb_test_multiple "info threads" "get thread 1 id" {
 162         -re "(\[0-9\]+)(${horiz}Thread${horiz}thread1.*)($gdb_prompt $)" {
 163         }
 164     }
 165
 166     set thread1_id $expect_out(1,string)
 167
 168     # Check that we can continue and create the second thread,
 169     # ignoring the first thread for the moment.
 170     gdb_test "break thread2" "Breakpoint .* file .*$srcfile.*"
 171     gdb_test "continue" \
 172             "Continuing.*Breakpoint .*, thread2 \\(arg=0xdeadbeef\\).*at.*$srcfile.*" \
 173             "Continue to creation of second thread"
 174
 175     # Extract the thread id number of thread 2 from "info threads" output.
 176     gdb_test_multiple "info threads" "get thread 2 id" {
 177         -re "(\[0-9\]+)(${horiz}Thread${horiz}thread2.*)($gdb_prompt $)" {
 178         }
 179     }
 180
 181     set thread2_id $expect_out(1,string)
 182
 183     return 1
 184 }
 185
 186 proc check_control_c {} {
 187     global gdb_prompt
 188
 189     # Verify that all threads are running.
 190     if [all_threads_running] then {
 191         pass "All threads running after startup"
 192     }
 193
 194     # Send a continue followed by ^C to the process to stop it.
 195     gdb_test_multiple "continue" "continue with all threads running" {
 196         -re "Continuing." {
 197             pass "Continue with all threads running"
 198         }
 199     }
 200     after 2000
 201     send_gdb "\003"
 202     set description "Stopped with a ^C"
 203     gdb_expect {
 204         -re "Program received signal SIGINT.*$gdb_prompt $" {
 205             pass $description
 206         }
 207         -re "Quit.*$gdb_prompt $" {
 208             pass $description
 209         }
 210         timeout {
 211             fail "$description (timeout)"
 212             return 1;
 213         }
 214     }
 215     gdb_test "bt" ".*"
 216
 217     # Verify that all threads can be run again after a ^C stop.
 218     if [all_threads_running] then {
 219         pass "All threads running after continuing from ^C stop"
 220     }
 221     return 0;
 222 }
 223
 224 proc check_backtraces {} {
 225     global gdb_prompt main_id thread1_id thread2_id
 226
 227     # Check that the "thread apply N backtrace" command works
 228
 229     gdb_test "thread apply $main_id backtrace" \
 230             ".* in main \\(argc=.*, argv=.*\\).*" \
 231             "check backtrace from main thread"
 232     gdb_test "thread apply $thread1_id backtrace" \
 233             ".* in thread1 \\(arg=0xfeedface\\).*" \
 234             "check backtrace from thread 1"
 235     gdb_test "thread apply $thread2_id backtrace" \
 236             ".* in thread2 \\(arg=0xdeadbeef\\).*" \
 237             "check backtrace from thread 2"
 238
 239     # Check that we can apply the backtrace command to all
 240     # three threads with a single gdb command
 241
 242     gdb_test "thread apply $main_id $thread1_id $thread2_id bt" \
 243             ".* in main .* in thread1 .* in thread2.*" \
 244             "apply backtrace command to all three threads"
 245
 246     # Check that we can do thread specific backtraces
 247     # This also tests that we can do thread specific breakpoints.
 248
 249     gdb_test "break common_routine thread $thread2_id" \
 250             "Breakpoint .* at 0x.* file .* line .*" \
 251             "set break at common_routine in thread 2"
 252
 253     gdb_test_multiple "continue" "continue to bkpt at common_routine in thread 2" {
 254         -re "Breakpoint .* common_routine \\(arg=2\\).*$gdb_prompt $" {
 255             pass "continue to bkpt at common_routine in thread 2"
 256             gdb_test "backtrace" \
 257                 "#0.*common_routine \\(arg=2\\).*#1.*thread2.*" \
 258                 "backtrace from thread 2 bkpt in common_routine"
 259         }
 260         -re "Breakpoint .* common_routine \\(arg=0\\).*$gdb_prompt $" {
 261             fail "continue to bkpt at common_routine in thread 2 (arg=0)"
 262         }
 263         -re "Breakpoint .* common_routine \\(arg=1\\).*$gdb_prompt $" {
 264             fail "continue to bkpt at common_routine in thread 2 (arg=1)"
 265         }
 266     }
 267 }
 268
 269 setup_xfail "alpha-*-osf*"
 270 if [runto_main] then {
 271     clear_xfail "alpha-*-osf*"
 272     if [test_startup] then {
 273         if [check_control_c] then {
 274             warning "Could not stop child with ^C; skipping rest of tests.\n"
 275             return;
 276         }
 277         check_backtraces
 278     }
 279 }
 280 clear_xfail "alpha-*-osf*"